float coshf(float x) { float t,w; int32_t ix; GET_FLOAT_WORD(ix,x); ix &= 0x7fffffff; /* x is INF or NaN */ if(ix>=0x7f800000) return x*x; /* |x| in [0,0.5*ln2], return 1+expm1(|x|)^2/(2*exp(|x|)) */ if(ix<0x3eb17218) { t = expm1f(fabsf(x)); w = one+t; if (ix<0x24000000) return w; /* cosh(tiny) = 1 */ return one+(t*t)/(w+w); } /* |x| in [0.5*ln2,22], return (exp(|x|)+1/exp(|x|)/2; */ if (ix < 0x41b00000) { t = expf(fabsf(x)); return half*t+half/t; } /* |x| in [22, log(maxdouble)] return half*exp(|x|) */ if (ix < 0x42b17180) return half*expf(fabsf(x)); /* |x| in [log(maxdouble), overflowthresold] */ if (ix<=0x42b2d4fc) { w = expf(half*fabsf(x)); t = half*w; return t*w; } /* |x| > overflowthresold, cosh(x) overflow */ return huge*huge; }
float sinhf(float x) { float t, w, h; s32_t ix, jx; GET_FLOAT_WORD(jx,x); ix = jx & 0x7fffffff; if (ix >= 0x7f800000) return x + x; h = 0.5; if (jx < 0) h = -h; if (ix < 0x41100000) { if (ix < 0x39800000) if (shuge + x > one) return x; t = expm1f(fabsf(x)); if (ix < 0x3f800000) return h * ((float) 2.0 * t - t * t / (t + one)); return h * (t + t / (t + one)); } if (ix < 0x42b17217) return h * expf(fabsf(x)); if (ix <= 0x42b2d4fc) { w = expf((float) 0.5 * fabsf(x)); t = h * w; return t * w; } return x * shuge; }
float coshf(float x) { float t, w; s32_t ix; GET_FLOAT_WORD(ix,x); ix &= 0x7fffffff; if (ix >= 0x7f800000) return x * x; if (ix < 0x3eb17218) { t = expm1f(fabsf(x)); w = one + t; if (ix < 0x39800000) return one; return one + (t * t) / (w + w); } if (ix < 0x41100000) { t = expf(fabsf(x)); return half * t + half / t; } if (ix < 0x42b17217) return half * expf(fabsf(x)); if (ix <= 0x42b2d4fc) { w = expf(half * fabsf(x)); t = half * w; return t * w; } return huge * huge; }
EXPORT_C float __ieee754_sinhf(float x) { float t,w,h; int32_t ix,jx; GET_FLOAT_WORD(jx,x); ix = jx&0x7fffffff; /* x is INF or NaN */ if(ix>=0x7f800000) return x+x; h = 0.5; if (jx<0) h = -h; /* |x| in [0,22], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x41b00000) { /* |x|<22 */ if (ix<0x31800000) /* |x|<2**-28 */ if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */ t = expm1f(fabsf(x)); if(ix<0x3f800000) return h*((float)2.0*t-t*t/(t+one)); return h*(t+t/(t+one)); } /* |x| in [22, log(maxdouble)] return 0.5*exp(|x|) */ if (ix < 0x42b17180) return h*__ieee754_expf(fabsf(x)); /* |x| in [log(maxdouble), overflowthresold] */ if (ix<=0x42b2d4fc) { w = __ieee754_expf((float)0.5*fabsf(x)); t = h*w; return t*w; } /* |x| > overflowthresold, sinh(x) overflow */ return x*shuge; }
DLLEXPORT float __ieee754_coshf(float x) { float t,w; int32_t ix; GET_FLOAT_WORD(ix,x); ix &= 0x7fffffff; /* x is INF or NaN */ if(ix>=0x7f800000) return x*x; /* |x| in [0,0.5*ln2], return 1+expm1(|x|)^2/(2*exp(|x|)) */ if(ix<0x3eb17218) { t = expm1f(fabsf(x)); w = one+t; if (ix<0x39800000) return one; /* cosh(tiny) = 1 */ return one+(t*t)/(w+w); } /* |x| in [0.5*ln2,9], return (exp(|x|)+1/exp(|x|))/2; */ if (ix < 0x41100000) { t = __ieee754_expf(fabsf(x)); return half*t+half/t; } /* |x| in [9, log(maxfloat)] return half*exp(|x|) */ if (ix < 0x42b17217) return half*__ieee754_expf(fabsf(x)); /* |x| in [log(maxfloat), overflowthresold] */ if (ix<=0x42b2d4fc) return __ldexp_expf(fabsf(x), -1); /* |x| > overflowthresold, cosh(x) overflow */ return huge*huge; }
inline float expm1f2(float x) { return expm1f(x); }
void domathf (void) { #ifndef NO_FLOAT float f1; float f2; int i1; f1 = acosf(0.0); fprintf( stdout, "acosf : %f\n", f1); f1 = acoshf(0.0); fprintf( stdout, "acoshf : %f\n", f1); f1 = asinf(1.0); fprintf( stdout, "asinf : %f\n", f1); f1 = asinhf(1.0); fprintf( stdout, "asinhf : %f\n", f1); f1 = atanf(M_PI_4); fprintf( stdout, "atanf : %f\n", f1); f1 = atan2f(2.3, 2.3); fprintf( stdout, "atan2f : %f\n", f1); f1 = atanhf(1.0); fprintf( stdout, "atanhf : %f\n", f1); f1 = cbrtf(27.0); fprintf( stdout, "cbrtf : %f\n", f1); f1 = ceilf(3.5); fprintf( stdout, "ceilf : %f\n", f1); f1 = copysignf(3.5, -2.5); fprintf( stdout, "copysignf : %f\n", f1); f1 = cosf(M_PI_2); fprintf( stdout, "cosf : %f\n", f1); f1 = coshf(M_PI_2); fprintf( stdout, "coshf : %f\n", f1); f1 = erff(42.0); fprintf( stdout, "erff : %f\n", f1); f1 = erfcf(42.0); fprintf( stdout, "erfcf : %f\n", f1); f1 = expf(0.42); fprintf( stdout, "expf : %f\n", f1); f1 = exp2f(0.42); fprintf( stdout, "exp2f : %f\n", f1); f1 = expm1f(0.00042); fprintf( stdout, "expm1f : %f\n", f1); f1 = fabsf(-1.123); fprintf( stdout, "fabsf : %f\n", f1); f1 = fdimf(1.123, 2.123); fprintf( stdout, "fdimf : %f\n", f1); f1 = floorf(0.5); fprintf( stdout, "floorf : %f\n", f1); f1 = floorf(-0.5); fprintf( stdout, "floorf : %f\n", f1); f1 = fmaf(2.1, 2.2, 3.01); fprintf( stdout, "fmaf : %f\n", f1); f1 = fmaxf(-0.42, 0.42); fprintf( stdout, "fmaxf : %f\n", f1); f1 = fminf(-0.42, 0.42); fprintf( stdout, "fminf : %f\n", f1); f1 = fmodf(42.0, 3.0); fprintf( stdout, "fmodf : %f\n", f1); /* no type-specific variant */ i1 = fpclassify(1.0); fprintf( stdout, "fpclassify : %d\n", i1); f1 = frexpf(42.0, &i1); fprintf( stdout, "frexpf : %f\n", f1); f1 = hypotf(42.0, 42.0); fprintf( stdout, "hypotf : %f\n", f1); i1 = ilogbf(42.0); fprintf( stdout, "ilogbf : %d\n", i1); /* no type-specific variant */ i1 = isfinite(3.0); fprintf( stdout, "isfinite : %d\n", i1); /* no type-specific variant */ i1 = isgreater(3.0, 3.1); fprintf( stdout, "isgreater : %d\n", i1); /* no type-specific variant */ i1 = isgreaterequal(3.0, 3.1); fprintf( stdout, "isgreaterequal : %d\n", i1); /* no type-specific variant */ i1 = isinf(3.0); fprintf( stdout, "isinf : %d\n", i1); /* no type-specific variant */ i1 = isless(3.0, 3.1); fprintf( stdout, "isless : %d\n", i1); /* no type-specific variant */ i1 = islessequal(3.0, 3.1); fprintf( stdout, "islessequal : %d\n", i1); /* no type-specific variant */ i1 = islessgreater(3.0, 3.1); fprintf( stdout, "islessgreater : %d\n", i1); /* no type-specific variant */ i1 = isnan(0.0); fprintf( stdout, "isnan : %d\n", i1); /* no type-specific variant */ i1 = isnormal(3.0); fprintf( stdout, "isnormal : %d\n", i1); /* no type-specific variant */ f1 = isunordered(1.0, 2.0); fprintf( stdout, "isunordered : %d\n", i1); f1 = j0f(1.2); fprintf( stdout, "j0f : %f\n", f1); f1 = j1f(1.2); fprintf( stdout, "j1f : %f\n", f1); f1 = jnf(2,1.2); fprintf( stdout, "jnf : %f\n", f1); f1 = ldexpf(1.2,3); fprintf( stdout, "ldexpf : %f\n", f1); f1 = lgammaf(42.0); fprintf( stdout, "lgammaf : %f\n", f1); f1 = llrintf(-0.5); fprintf( stdout, "llrintf : %f\n", f1); f1 = llrintf(0.5); fprintf( stdout, "llrintf : %f\n", f1); f1 = llroundf(-0.5); fprintf( stdout, "lroundf : %f\n", f1); f1 = llroundf(0.5); fprintf( stdout, "lroundf : %f\n", f1); f1 = logf(42.0); fprintf( stdout, "logf : %f\n", f1); f1 = log10f(42.0); fprintf( stdout, "log10f : %f\n", f1); f1 = log1pf(42.0); fprintf( stdout, "log1pf : %f\n", f1); f1 = log2f(42.0); fprintf( stdout, "log2f : %f\n", f1); f1 = logbf(42.0); fprintf( stdout, "logbf : %f\n", f1); f1 = lrintf(-0.5); fprintf( stdout, "lrintf : %f\n", f1); f1 = lrintf(0.5); fprintf( stdout, "lrintf : %f\n", f1); f1 = lroundf(-0.5); fprintf( stdout, "lroundf : %f\n", f1); f1 = lroundf(0.5); fprintf( stdout, "lroundf : %f\n", f1); f1 = modff(42.0,&f2); fprintf( stdout, "lmodff : %f\n", f1); f1 = nanf(""); fprintf( stdout, "nanf : %f\n", f1); f1 = nearbyintf(1.5); fprintf( stdout, "nearbyintf : %f\n", f1); f1 = nextafterf(1.5,2.0); fprintf( stdout, "nextafterf : %f\n", f1); f1 = powf(3.01, 2.0); fprintf( stdout, "powf : %f\n", f1); f1 = remainderf(3.01,2.0); fprintf( stdout, "remainderf : %f\n", f1); f1 = remquof(29.0,3.0,&i1); fprintf( stdout, "remquof : %f\n", f1); f1 = rintf(0.5); fprintf( stdout, "rintf : %f\n", f1); f1 = rintf(-0.5); fprintf( stdout, "rintf : %f\n", f1); f1 = roundf(0.5); fprintf( stdout, "roundf : %f\n", f1); f1 = roundf(-0.5); fprintf( stdout, "roundf : %f\n", f1); f1 = scalblnf(1.2,3); fprintf( stdout, "scalblnf : %f\n", f1); f1 = scalbnf(1.2,3); fprintf( stdout, "scalbnf : %f\n", f1); /* no type-specific variant */ i1 = signbit(1.0); fprintf( stdout, "signbit : %i\n", i1); f1 = sinf(M_PI_4); fprintf( stdout, "sinf : %f\n", f1); f1 = sinhf(M_PI_4); fprintf( stdout, "sinhf : %f\n", f1); f1 = sqrtf(9.0); fprintf( stdout, "sqrtf : %f\n", f1); f1 = tanf(M_PI_4); fprintf( stdout, "tanf : %f\n", f1); f1 = tanhf(M_PI_4); fprintf( stdout, "tanhf : %f\n", f1); f1 = tgammaf(2.1); fprintf( stdout, "tgammaf : %f\n", f1); f1 = truncf(3.5); fprintf( stdout, "truncf : %f\n", f1); f1 = y0f(1.2); fprintf( stdout, "y0f : %f\n", f1); f1 = y1f(1.2); fprintf( stdout, "y1f : %f\n", f1); f1 = ynf(3,1.2); fprintf( stdout, "ynf : %f\n", f1); #endif }
npy_float npy_expm1f(npy_float x) { return expm1f(x); }
TEST(math, expm1f) { ASSERT_FLOAT_EQ(static_cast<float>(M_E) - 1.0f, expm1f(1.0f)); }
__host__ void single_precision_math_functions() { int iX; float fX, fY; acosf(1.0f); acoshf(1.0f); asinf(0.0f); asinhf(0.0f); atan2f(0.0f, 1.0f); atanf(0.0f); atanhf(0.0f); cbrtf(0.0f); ceilf(0.0f); copysignf(1.0f, -2.0f); cosf(0.0f); coshf(0.0f); //cospif(0.0f); //cyl_bessel_i0f(0.0f); //cyl_bessel_i1f(0.0f); erfcf(0.0f); //erfcinvf(2.0f); //erfcxf(0.0f); erff(0.0f); //erfinvf(1.0f); exp10f(0.0f); exp2f(0.0f); expf(0.0f); expm1f(0.0f); fabsf(1.0f); fdimf(1.0f, 0.0f); //fdividef(0.0f, 1.0f); floorf(0.0f); fmaf(1.0f, 2.0f, 3.0f); fmaxf(0.0f, 0.0f); fminf(0.0f, 0.0f); fmodf(0.0f, 1.0f); frexpf(0.0f, &iX); hypotf(1.0f, 0.0f); ilogbf(1.0f); isfinite(0.0f); isinf(0.0f); isnan(0.0f); ///j0f(0.0f); ///j1f(0.0f); ///jnf(-1.0f, 1.0f); ldexpf(0.0f, 0); ///lgammaf(1.0f); ///llrintf(0.0f); ///llroundf(0.0f); log10f(1.0f); log1pf(-1.0f); log2f(1.0f); logbf(1.0f); logf(1.0f); ///lrintf(0.0f); ///lroundf(0.0f); modff(0.0f, &fX); ///nanf("1"); nearbyintf(0.0f); //nextafterf(0.0f); //norm3df(1.0f, 0.0f, 0.0f); //norm4df(1.0f, 0.0f, 0.0f, 0.0f); //normcdff(0.0f); //normcdfinvf(1.0f); //fX = 1.0f; normf(1, &fX); powf(1.0f, 0.0f); //rcbrtf(1.0f); remainderf(2.0f, 1.0f); remquof(1.0f, 2.0f, &iX); //rhypotf(0.0f, 1.0f); ///rintf(1.0f); //rnorm3df(0.0f, 0.0f, 1.0f); //rnorm4df(0.0f, 0.0f, 0.0f, 1.0f); //fX = 1.0f; rnormf(1, &fX); roundf(0.0f); //rsqrtf(1.0f); ///scalblnf(0.0f, 1); scalbnf(0.0f, 1); signbit(1.0f); sincosf(0.0f, &fX, &fY); //sincospif(0.0f, &fX, &fY); sinf(0.0f); sinhf(0.0f); //sinpif(0.0f); sqrtf(0.0f); tanf(0.0f); tanhf(0.0f); tgammaf(2.0f); truncf(0.0f); ///y0f(1.0f); ///y1f(1.0f); ///ynf(1, 1.0f); }
static int testf(float float_x, long double long_double_x, /*float complex float_complex_x,*/ int int_x, long long_x) { int r = 0; r += acosf(float_x); r += acoshf(float_x); r += asinf(float_x); r += asinhf(float_x); r += atan2f(float_x, float_x); r += atanf(float_x); r += atanhf(float_x); /*r += cargf(float_complex_x); - will fight with complex numbers later */ r += cbrtf(float_x); r += ceilf(float_x); r += copysignf(float_x, float_x); r += cosf(float_x); r += coshf(float_x); r += erfcf(float_x); r += erff(float_x); r += exp2f(float_x); r += expf(float_x); r += expm1f(float_x); r += fabsf(float_x); r += fdimf(float_x, float_x); r += floorf(float_x); r += fmaf(float_x, float_x, float_x); r += fmaxf(float_x, float_x); r += fminf(float_x, float_x); r += fmodf(float_x, float_x); r += frexpf(float_x, &int_x); r += gammaf(float_x); r += hypotf(float_x, float_x); r += ilogbf(float_x); r += ldexpf(float_x, int_x); r += lgammaf(float_x); r += llrintf(float_x); r += llroundf(float_x); r += log10f(float_x); r += log1pf(float_x); r += log2f(float_x); r += logbf(float_x); r += logf(float_x); r += lrintf(float_x); r += lroundf(float_x); r += modff(float_x, &float_x); r += nearbyintf(float_x); r += nexttowardf(float_x, long_double_x); r += powf(float_x, float_x); r += remainderf(float_x, float_x); r += remquof(float_x, float_x, &int_x); r += rintf(float_x); r += roundf(float_x); #ifdef __UCLIBC_SUSV3_LEGACY__ r += scalbf(float_x, float_x); #endif r += scalblnf(float_x, long_x); r += scalbnf(float_x, int_x); r += significandf(float_x); r += sinf(float_x); r += sinhf(float_x); r += sqrtf(float_x); r += tanf(float_x); r += tanhf(float_x); r += tgammaf(float_x); r += truncf(float_x); return r; }
__global__ void FloatMathPrecise() { int iX; float fX, fY; acosf(1.0f); acoshf(1.0f); asinf(0.0f); asinhf(0.0f); atan2f(0.0f, 1.0f); atanf(0.0f); atanhf(0.0f); cbrtf(0.0f); fX = ceilf(0.0f); fX = copysignf(1.0f, -2.0f); cosf(0.0f); coshf(0.0f); cospif(0.0f); cyl_bessel_i0f(0.0f); cyl_bessel_i1f(0.0f); erfcf(0.0f); erfcinvf(2.0f); erfcxf(0.0f); erff(0.0f); erfinvf(1.0f); exp10f(0.0f); exp2f(0.0f); expf(0.0f); expm1f(0.0f); fX = fabsf(1.0f); fdimf(1.0f, 0.0f); fdividef(0.0f, 1.0f); fX = floorf(0.0f); fmaf(1.0f, 2.0f, 3.0f); fX = fmaxf(0.0f, 0.0f); fX = fminf(0.0f, 0.0f); fmodf(0.0f, 1.0f); frexpf(0.0f, &iX); hypotf(1.0f, 0.0f); ilogbf(1.0f); isfinite(0.0f); fX = isinf(0.0f); fX = isnan(0.0f); j0f(0.0f); j1f(0.0f); jnf(-1.0f, 1.0f); ldexpf(0.0f, 0); lgammaf(1.0f); llrintf(0.0f); llroundf(0.0f); log10f(1.0f); log1pf(-1.0f); log2f(1.0f); logbf(1.0f); logf(1.0f); lrintf(0.0f); lroundf(0.0f); modff(0.0f, &fX); fX = nanf("1"); fX = nearbyintf(0.0f); nextafterf(0.0f, 0.0f); norm3df(1.0f, 0.0f, 0.0f); norm4df(1.0f, 0.0f, 0.0f, 0.0f); normcdff(0.0f); normcdfinvf(1.0f); fX = 1.0f; normf(1, &fX); powf(1.0f, 0.0f); rcbrtf(1.0f); remainderf(2.0f, 1.0f); remquof(1.0f, 2.0f, &iX); rhypotf(0.0f, 1.0f); fY = rintf(1.0f); rnorm3df(0.0f, 0.0f, 1.0f); rnorm4df(0.0f, 0.0f, 0.0f, 1.0f); fX = 1.0f; rnormf(1, &fX); fY = roundf(0.0f); rsqrtf(1.0f); scalblnf(0.0f, 1); scalbnf(0.0f, 1); signbit(1.0f); sincosf(0.0f, &fX, &fY); sincospif(0.0f, &fX, &fY); sinf(0.0f); sinhf(0.0f); sinpif(0.0f); sqrtf(0.0f); tanf(0.0f); tanhf(0.0f); tgammaf(2.0f); fY = truncf(0.0f); y0f(1.0f); y1f(1.0f); ynf(1, 1.0f); }
static GMQCC_INLINE ast_expression *fold_intrin_expm1(fold_t *fold, ast_value *a) { return fold_constgen_float(fold, expm1f(fold_immvalue_float(a))); }